Tool for rolling the edge of a wind musical instrument valve seat



, March 10, 1925. 1,529,430; E. J. GULI CK m TOOL FOR ROLLING THE EDGEOF A WIND MUSICAL INSTRUMENT VALVE S EAT Filed Dec. 21, 1923 7 v z WW 5'l 5 \Y nu 4 I 2 Ivar/6%): My

Patented Mar. 10, 1925.

UNITED STATES 1,529,430 PATENT OFFICE.

EDWARD J. GULICK, OF ELKHART, INDIANA, ASSIGNOB TO 0. G. CONN, LTDz, OFELK- HART, INDIANA, A CORPORATION OF INDIANA.

TOOL FOR ROLLING THE EDGE OF A WIND MUSICAL INSTBUMIENT VALVE SEAT.

Application filed December 21, 1923.

To all whom it may concern:

Be it known that I,'ED\VARD J. GULIOK,

a citizen of the United States. residing in the city of Elkhart, countyof Elkhart, and State of Indiana, have invented certain new and usefulImprovements in Tools for R011- ing the Edge of a l Vind MusicalInstrument Valve Seat, of which the following is a specification.

My invention relates to tools and especially to tools for making partsof wind musical instruments.

The primary object of this invention is to provide a tool for rolling orbeading the valve seat of wind musical instruments, especiallysaxaphones.

The preferred embodiment of my invention is illustrated in theaccompanying drawing, in which Figure 1 is a view of a saxaphoneprovided with rolled edge valve seats; Fig. 2 is a section takentransversely through a saxaphone body at the valve seat illustrating thetools in position after rolling the valve seat edge; Fig. 8 is afragmental side elevation of the exterior of the same elements;

Fig. 1 is a view similar to Fig. 2 prior to rolling the valve seat edge;Fig. 5 is a view of the tool shoe; Fig. 6 is a transverse fragment ofthe valve seat enlarged, illustrating the rolled valve seat edge; Fig. 7is an elevation of the tool shoe holder showing a modification of theshoe; Fig. 8 is a bottom plan view thereof; and Fig. 9 is a sideelevation of the shoe shown in Figures 7 and 8.

Similar numerals of reference indicate like parts throughout the severalviews on the drawing.

Reference to the details of the drawing discloses that the numeral 1illustrates a saxaphone body provided with the usual plurality ofintegral valve seats 2, 2, said body being formed of ductile brasssheeting, or other suitable flexible metal, the valve seat edge 3 beingoutwardly rolled, as illustrated, to cause less wear on the kid leatherfaced valve pad-not shownthe use whereof is common and well known in theart.

The tool for rolling the valve seat edge 3 comprises generally thecylindrical tapered mandrel 4 positioned interiorly of the tubularsaxaphone body 1, the cylindrical head element 5 and the shoe 6detachably mounted upon the head. The head element 5 is provided with ashank 7 adapted to be gripped Serial No. 681,944.

by a rotary shaft forming a part of a drill press, or the like, toeifect rapid-rotation of the head 5 and the shoe 6 mounted thereon, andfor the purpose of feeding the head and shoe downward into the valveseat as the edge of the latter is rolled over by the shoe of the tool.

The head 5 is transversely drilled at 8 to receive the cylinder shoe 6which may be detachably mounted in position by a pin 9 to prevent rotarymovement of said shoe, said pin engaging a suitable aperture in the shoefor that purpose. The opposite ends of the shoe 6 project beyond theperiphery of the head 5 and the under side of each shoe end is providedwith a substantially semicircular kerf 10 adapted to engage the upperedge of the valve seat 2. The tool head 5 is provided with a cylindricalguiding extension section 11 adapted to extend into the interior of thevalve seat and the cylindrical socket 12 formed in the mandrel to guidesaid head and to prevent collapse and dis tortion of the valve seatduring the process of rolling the seat edge 3. The mandrel 4: is adaptedto fit closely within the saxaphone body to prevent collapse ordistortion thereof while the valve seat edge is being rolled.

In the modification illustrated in Figures 7, 8 and 9 the shoe 6 isformed of a fiat plate and the head 5 and guide section 11 thereof arebifurcated at- 13 to receive and carry the shoe, the latter beingsecured detachably in position in said head by a pin 9 which maytraverse the opening 14: in said shoe. The shoe 6 is provided withkerf's 10 at opposite sides thereof similar to kerfs formed in the shoe6.

In operation, the mandrel 4. and saxaphone body 1 are assembled rigidlyand the tool section 11 inserted in the valve seat interior and mandrelsocket 12. Thereupon, the tool head 5, carrying the shoe 6, is rapidlyrotated and fed downward until the valve seat edge 3 is rolled to thedesired condition by the shoe kerfs 10. With the tool described it ispossible to roll the valve seat edge 3 without distorting, denting or inany manner injuring the saxaphone body.

I claim:

1. A tool for rolling the edge of the valve seat of a wind musicalinstrument, comprising a mandrel provided with a socket; and a headelement provided with a shoe, said shoe being providedwith a kerfandsaid head beingadaptedw to engage Within said mandrel socket-J 2. A toolfor rolling the edge of a valve seat 6i? a'vviiid ma ical insti'u'nient;omprising a mandrel providedwith a socket and a head element providedwith a detachable shoe, said shoe being provided'vvitli a kerf and saidhead being adapted to engage Within said mandrel socket. v

.3.YA tool for rolling the edge of a valve of a Wind musical"instrument,comprising a mandrel provided Wlth a socket; a head element. adapted tobe rotatedand to engage vvithinsaidniandrel socket; ashoe elementmounted in said, head transversely thereof and provided With a kei'f atits opposite ends; and means to prevent movement 0 said shoe initsmount.

4. A tool forrolling the edge of the valve seat of a Wind mnsicalinstruinent; comprising a mandrel provided with a Socket; a fi'irCate'dhead element adapted to engage Withinsaid niaiidr'el soolitjaiid a shoeeles nient mounted between the forks of said fureated head, said shoebeing providedwith a kerf.

5. A toolfor rollingthe edge of the valve seat of a Windiniis'iealinstrunient, comprising a mandrel provided With a-sooket;afur- Gated head elementv adapted to engage Within said inandi'elsocket; asho'e eleme t detaehably seei red betiveenth'e forks of saidflTllCQiQClhQZLd- MLlCl shoebein provided with a ker-f on theop'positeends thereof.

In Witness whereof I have hei'eiinto aflixed f my signature this 5thdgyoi December, 1923;

EDl/VARD J GULICK.

